292 Stock Exhaust Manifold - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Crazy Rusty · 02-04-2017, 03:34 PM

I'd like to restore my original exhaust manifold to its previous glory but can't seem to find any information on it. I believe I understand how the flapper works though I haven't ordered a new spring for it yet (figure I'll test it with a heat gun) but I'd like to be able to take that all apart and clean it which doesn't seem possible. In the two pictures I circled bolts that were in there (one came out, one broke off) and was wondering if anyone knew what was supposed to be in there.

If anyone has any information or better yet, any high res pictures of this header (as there appears to be several versions around) it would be highly appreciated!

Thanks

vin63 · 02-04-2017, 03:51 PM

That should be the area that the choke assembly mounted...similar to this:

**60-66** · 02-05-2017, 10:52 AM

On a Truck , nothing goes there. Trucks use a cable for the choke , Manual choke. Only cars used the automatic choke as VIN posted

vince1 · 02-05-2017, 03:27 PM

Did you get the broken stud out yet? If you heat it up and then let it cool it will come out easier. If you can drill down the center of it an easy out should work. I like the short stubby ones with the reverse thread because they seem to be a lot stronger.

I think your 292 manifold might have a larger exhaust outlet that the 250 model.

Wrenchbender Ret · 02-05-2017, 04:55 PM

You can't take the heat risor apart. If it works freely & the shafts aren't worn much you are fine. Like the guys say those little holes are for choke stove. you won't need them with a manual choke. The light duty 292 manifold is the same as the 230-250. The larger trucks 1 1/2 ton up had a manifold with a larger opening for the exhaust pipe. It had no heat risor.

Crazy Rusty · 02-06-2017, 03:34 PM

Thanks for all the info! I haven't taken out the stud yet but was going to drill it out. I'm not sure if I'll stay with them or not as the gasket area is extremely rough. Not sure I could ever get a good seal. Unfortunately the intake is the same so while I was trying to save money and go original I might just have to go with an offy and headers.

cg285 · 02-06-2017, 04:03 PM

http://petersonwashandblast.com/new-...tock/rg1234-3/

find someone with one of these and they'll fix you right up

02-04-2017, 03:34 PM	#1
Crazy Rusty Registered User Join Date: Jul 2011 Location: Tacoma, WA Posts: 176	292 Stock Exhaust Manifold I'd like to restore my original exhaust manifold to its previous glory but can't seem to find any information on it. I believe I understand how the flapper works though I haven't ordered a new spring for it yet (figure I'll test it with a heat gun) but I'd like to be able to take that all apart and clean it which doesn't seem possible. In the two pictures I circled bolts that were in there (one came out, one broke off) and was wondering if anyone knew what was supposed to be in there. If anyone has any information or better yet, any high res pictures of this header (as there appears to be several versions around) it would be highly appreciated! Thanks Attached Images __________________ 1965 C10 Longbed Stepside 1969 Chevelle Malibu 1962 C20 Fleetside - Build Thread (Sold before I could finish)

02-04-2017, 03:51 PM	#2
vin63 It's Better With Nitro Join Date: Apr 2008 Location: Chino Hills, CA Posts: 2,262	Re: 292 Stock Exhaust Manifold That should be the area that the choke assembly mounted...similar to this: __________________ 1963 C-10: Deluxe-optioned cab, shortbed, fleetside Pontiac 462 ci, Kauffman D-Port alum. heads 4L80E, narrowed sheetmetal Ford 9-inch Tubular front and rear suspension Custom 6-piston front disc and 4-piston rear disc brakes

02-05-2017, 10:52 AM	#3
60-66 Registered User Join Date: Apr 2012 Location: Wisconsin Posts: 3,329	Re: 292 Stock Exhaust Manifold On a Truck , nothing goes there. Trucks use a cable for the choke , Manual choke. Only cars used the automatic choke as VIN posted __________________ IS IT an EATON or Chevrolet rear axle https://67-72chevytrucks.com/vboard/...d.php?t=843778 The hubcap thread http://67-72chevytrucks.com/vboard/s...d.php?t=702839 WANTED : 1963-1966 6 Cylinder Fan Shroud WANTED :1964-1966 PANEL TRUCK

02-05-2017, 03:27 PM	#4
vince1 Registered User Join Date: Jan 2013 Location: Calgary Alberta Posts: 1,170	Re: 292 Stock Exhaust Manifold Did you get the broken stud out yet? If you heat it up and then let it cool it will come out easier. If you can drill down the center of it an easy out should work. I like the short stubby ones with the reverse thread because they seem to be a lot stronger. I think your 292 manifold might have a larger exhaust outlet that the 250 model.

02-05-2017, 04:55 PM	#5
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,229	Re: 292 Stock Exhaust Manifold You can't take the heat risor apart. If it works freely & the shafts aren't worn much you are fine. Like the guys say those little holes are for choke stove. you won't need them with a manual choke. The light duty 292 manifold is the same as the 230-250. The larger trucks 1 1/2 ton up had a manifold with a larger opening for the exhaust pipe. It had no heat risor.

02-06-2017, 03:34 PM	#6
Crazy Rusty Registered User Join Date: Jul 2011 Location: Tacoma, WA Posts: 176	Re: 292 Stock Exhaust Manifold Thanks for all the info! I haven't taken out the stud yet but was going to drill it out. I'm not sure if I'll stay with them or not as the gasket area is extremely rough. Not sure I could ever get a good seal. Unfortunately the intake is the same so while I was trying to save money and go original I might just have to go with an offy and headers. __________________ 1965 C10 Longbed Stepside 1969 Chevelle Malibu 1962 C20 Fleetside - Build Thread (Sold before I could finish)

02-06-2017, 04:03 PM	#7
cg285 Registered User Join Date: Aug 2013 Location: sumterville, florida Posts: 914	Re: 292 Stock Exhaust Manifold http://petersonwashandblast.com/new-...tock/rg1234-3/ find someone with one of these and they'll fix you right up



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